CSS modification on InstantWordPress

Here are the CSS codes I used:

h1 { color: red;
font-size: 32px;
font-style: italic;
text-decoration: underline;
letter-spacing:20px}

img[class*=”align”], img[class*=”wp-image-“], #content .gallery .gallery-icon img {
border: 10px dotted blue;
padding: 154px;
background: yellow;
}

And here is the before and after effect:

Before

After